[jira] [Assigned] (MAPREDUCE-2454) Allow external sorter plugin for MR

["Bharat Jha (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bharat Jha reassigned MAPREDUCE-2454:
-------------------------------------

    Assignee: Bharat Jha  (was: Mariappan Asokan)

> Allow external sorter plugin for MR
> -----------------------------------
>
>                 Key: MAPREDUCE-2454
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2454
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>    Affects Versions: 2.0.0-alpha, 3.0.0, 2.0.2-alpha
>            Reporter: Mariappan Asokan
>            Assignee: Bharat Jha
>            Priority: Minor
>              Labels: features, performance, plugin, sort
>             Fix For: 2.0.3-alpha
>
>         Attachments: HadoopSortPlugin.pdf, HadoopSortPlugin.pdf, KeyValueIterator.java, MR-2454-trunkPatchPreview.gz, MapOutputSorter.java, MapOutputSorterAbstract.java, ReduceInputSorter.java, mapreduce-2454-modified-code.patch, mapreduce-2454-modified-test.patch, mapreduce-2454-new-test.patch, mapreduce-2454-protection-change.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mr-2454-on-mr-279-build82.patch.gz
>
>
> Define interfaces and some abstract classes in the Hadoop framework to facilitate external sorter plugins both on the Map and Reduce sides.



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